One thing that definitely went wrong in the lab was that we had to round about two of our measurements and the reason being was that they were exact. To exemplify, when we were reading the volume for the finishing measurement of the base for trial three, we got exactly 45.00 mL. The only problem was that, we had didn’t really have the two significant decimal numbers. Hence, we rounded our volume to 45.01 mL. Also, we got exactly 23.00 mL for our finishing volume of the acid for trial three. Therefore, once again we rounded it to 23.02mL in order to get at least two significant decimal numbers.…
The standard deviation of mass lost for my personal data was approximately 25%. This shows me that there was a low amount of errors made in measurements. The uncertainty in the class is high which opposes my percentage of uncertainty. Some major sources of determinate error are incorrectly computing the recorded data into Excel.…
How did you determine this during lab? State some reasons why this device might be least accurate compared to the…
Copper particles were left behind in the funnel and could’ve also been decanted. The loss of copper is shown in the calculations since the theoretical percent has a higher percent of copper and the experiment has a lower…
1. The reported mole ratio of magnesium to oxygen will be too high. The experiment will have less oxidation while burning. Since there are 2 oxygen and some of the magnesium evaporates as it burns, the ratio will be higher than usual 2.…
Rocket Lab Experiment #4 Lilly Creswick (w/ Michelle Kubrin) Colorado School of Mines Chemistry 121 section 2AB Tace Rand Dr. Caster, Dr. Falconer, Dr. Sower September 20, 2016 Abstract: The Rocket Lab aimed to create a successful rocket made out of a pipet bulb filled with Acetylene and Oxygen gas. Different ratios of Oxygen and Acetylene gas were used to determine what would create the largest propulsion and launch the rocket bulb the furthest.…
These include, event to event weather conditions impacting the motion of the bottle rocket in the the x and z planes. This therefore potentially resulting in an effect on the motion of the bottle and the height data recorded at an unknown level; as opposed to that in theoretical conditions. Moreover, incorrect initial scaling of length measurement on the data analysis soft-wear, could have resulted in incorrect heights being deemed to have been reached by the bottle rocket. The nature of the freeze frame data analyzation on Pasco also resulted in time recordings that had slight discrepancies of maximum 0.033 seconds with one another, thus meaning that the variable of time was strictly not controlled within the experiment. Small test to test discrepancies in pressure gage reading is another area in which random error may have occurred.…
They said that they got accurate results, but they might not of, because there aren’t any charts or graphs to look at the information they…
Back in the late 1960s, Walter Mischel, a Stanford University psychologist, conducted a psychological experiment known as the Marshmallow test. The experiment was conducted at the Stanford University nursery. He wanted to understand the concept of delayed gratification in a small child between the ages of 4 and 6. The idea was to create a situation for the child to choose between a small reward now and a large reward later, thus causing a conflict situation. They were deliberately placed in a room with no mental stimuli, which allowed them to see if the children could distract themselves from the reward.…
For my group’s project we changed the size of the woosh bottles to .5, 1, and 2 liter bottles. I learned that the size of the bottle strongly affects how far the bottle will travel. The larger the bottle, the farther it travelled. I learned that the chemical reactions in the bottle with the ethanol and the flame creates energy which propels the rocket. The ethanol is also ‘absorbed’ by the fire of the match.…
Most of the errors in the other reactions would cause a loss of mass, not a gain. The errors that are most likely are the incorrect massing. Whether it was the original mass or the mass of the filter paper with or without the copper would cause a result in the mass because if the original copper weighed more than in our calculations our results would match the Law of Conservation of Mass. Notably, if the mass of the filter paper was incorrect and weighed less than thought, when we subtracted our mass with the filter paper and copper by the original mass, our answer would be higher than…
What makes a good rocket? Many things go into making the perfect rocket, but just what are they? That is what Colin Robinson and Heidi Hall set out to find out. The first thing that had to be tested was the ideal mass of the rocket. A lot of the rockets distance depends on the mass and the area.…
Purpose: To study sliding friction and to determine the coefficients of static and kinetic friction. Theory: Friction is a force that opposes motion. Static friction prevents an objects being set into motion by an external force. Kinetic friction opposes the progress of a sliding object.…
Our error could have been led back to the flame of our bunsen burner not being consistent due to the fact that it was put out by the wind coming into the room, meaning our crucible was not directly under heat at all time. It also could have been due to our mistake of not cleaning the magnesium ribbon from oxides at the beginning. Therefore, it might’ve not been luster enough for the experiment to…
Also in Trial 2 of every temperature was lower or the same as the other data collected. To improve future experiments, finding a way to receive a cooler temperature with less energy and particle movement would be…